3303661 has 8 divisors (see below), whose sum is σ = 3514104. Its totient is φ = 3095040.

The previous prime is 3303637. The next prime is 3303667. The reversal of 3303661 is 1663033.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 630436 + 2673225 = 794^2 + 1635^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3303661 - 2⁷ = 3303533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3303667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6081 + ... + 6601.

It is an arithmetic number, because the mean of its divisors is an integer number (439263).

Almost surely, 2^3303661 is an apocalyptic number.

It is an amenable number.

3303661 is a deficient number, since it is larger than the sum of its proper divisors (210443).

3303661 is a wasteful number, since it uses less digits than its factorization.

3303661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 3303661 is about 1817.5975902273. The cubic root of 3303661 is about 148.9355906770.

Adding to 3303661 its reverse (1663033), we get a palindrome (4966694).

The spelling of 3303661 in words is "three million, three hundred three thousand, six hundred sixty-one".